From: Phillip Susi <psusi@cfl.rr.com>
Date: Wed, 31 Mar 2010 13:52:08 +0000 (+0200)
Subject: partx: do not add nonexistent partitions
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6d9cc6ea158ef3b2525742ee3f80c4a3be8b049;p=util-linux

partx: do not add nonexistent partitions

This simple patch fixes partx -a to not add nonexistent zero length
partitions for unused primary partition slots to to the kernel. This
makes partx conform to the usual kernel behavior.

Signed-off-by: Phillip Susi <psusi@cfl.rr.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/partx/partx.c b/partx/partx.c
index 16ea1fab..3d60bf69 100644
--- a/partx/partx.c
+++ b/partx/partx.c
@@ -295,6 +295,9 @@ main(int argc, char **argv){
 				}
 			    }
 			    for (j=0; j<n; j++) {
+			        /* skip unused/empty partitions */
+				if (slices[j].size == 0)
+				    continue;
 				pt.pno = lower+j;
 				pt.start = 512 * (long long) slices[j].start;
 				pt.length = 512 * (long long) slices[j].size;